﻿<!DOCTYPE html>
<html>
     <head>
          <meta charset="UTF-8">
          <title></title>
     </head>
		<script>
		
			//生成一个6位 数字字母混合的验证码 
			var list = [];
			//0~9
			for(var i=0; i<=9; i++){
				list.push(i);
			}
			//a-z 
			for(var i=97; i<=122; i++){
				var ch = String.fromCharCode(i);
				list.push(ch);
			}
			//A-Z
			for(var i=65; i<=90; i++){
				var ch = String.fromCharCode(i);
				list.push(ch);
			}
			/*
			for(var i=0; i<=122; i++){
				if(i>=48 && i<=57){
				
				}
				if(i>=65 && i<=90){
				
				}
				if(i>=97 && i<=122){
				
				}
			}
			*/
			console.log(list);
			
			
			
		</script>
     <body>
          <div id="graph" class="graph">
          </div>
     </body>
  
</html>
